TMP102AIDRLRG4 Equivalent & Substitute Parts

Part Overview

The TMP102AIDRLRG4 is a digital temperature sensor manufactured by Texas Instruments, designed for local temperature measurement across the range of -40°C to 125°C with 11-bit resolution. The device communicates via I2C/SMBus interface and operates on a supply voltage of 1.4V to 3.6V. This part is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Sensor Type	Digital, Local
Sensing Temperature Range	-40°C ~ 125°C
Output Type	I2C/SMBus
Supply Voltage	1.4V ~ 3.6V
Resolution	11 bits
Accuracy	±2°C (-25°C ~ 85°C) / ±3°C (-40°C ~ 125°C)
Package Type	SOT-563, SOT-666
Mounting Type	Surface Mount
Features	One-Shot, Output Switch, Shutdown Mode
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TMP102AIDRLRG4 is determined by strict equivalence across the following critical parameters:

Sensor type and measurement capability (Digital, Local)
Temperature sensing range (-40°C ~ 125°C)
Communication protocol (I2C/SMBus)
Supply voltage range (1.4V ~ 3.6V)
Resolution (11 bits)
Accuracy specification (±2°C / ±3°C)
Package and mounting compatibility (SOT-563/SOT-666, Surface Mount)
Functional features (One-Shot, Output Switch, Shutdown Mode)
Regulatory compliance (ROHS3, REACH Unaffected)

The TMP102AIDRLR qualifies as a direct substitute based on identical electrical specifications, functional features, and package compatibility. The primary distinction is product status: TMP102AIDRLRG4 is obsolete, while TMP102AIDRLR is active.

Parameter Comparison

Parameter	TMP102AIDRLRG4 (Main)	TMP102AIDRLR (Substitute)
Manufacturer	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active
Sensor Type	Digital, Local	Digital, Local
Sensing Temperature Range	-40°C ~ 125°C	-40°C ~ 125°C
Output Type	I2C/SMBus	I2C/SMBus
Supply Voltage	1.4V ~ 3.6V	1.4V ~ 3.6V
Resolution	11 bits	11 bits
Accuracy (-25°C ~ 85°C)	±2°C	±2°C
Accuracy (-40°C ~ 125°C)	±3°C	±3°C
Operating Temperature	-55°C ~ 150°C	-55°C ~ 150°C
Package / Case	SOT-563, SOT-666	SOT-563, SOT-666
Mounting Type	Surface Mount	Surface Mount
Features	One-Shot, Output Switch, Shutdown Mode	One-Shot, Output Switch, Shutdown Mode
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Base Product Number	TMP102	TMP102

Engineering Selection Recommendations

The TMP102AIDRLR is the direct substitute for TMP102AIDRLRG4. Selection of the active part is justified by:

Identical electrical and functional specifications across all critical parameters
Active product status ensuring ongoing availability and supply chain continuity
Full compliance with ROHS3 and REACH regulatory requirements
Equivalent packaging in SOT-563 and SOT-666 options
No design modifications required for PCB layout or firmware integration

For applications currently using TMP102AIDRLRG4, transition to TMP102AIDRLR requires no circuit redesign or software changes.

Frequently Asked Questions (FAQ)

Q: Can TMP102AIDRLR be used as a direct replacement for TMP102AIDRLRG4?

A: Yes. Both parts share identical electrical specifications, communication protocol, temperature range, resolution, accuracy, and package options. No circuit or firmware modifications are necessary.

Q: What is the difference between TMP102AIDRLRG4 and TMP102AIDRLR?

A: The primary difference is product status. TMP102AIDRLRG4 is obsolete, while TMP102AIDRLR is active. All technical specifications and performance characteristics are equivalent.

Q: Are the package options the same?

A: Yes. Both parts are available in SOT-563 and SOT-666 packages with surface mount mounting type.

Q: Does the substitute part meet the same compliance standards?

A: Yes. TMP102AIDRLR is ROHS3 compliant and REACH unaffected, matching the compliance profile of TMP102AIDRLRG4.

Q: What supply voltage range does the substitute support?

A: The TMP102AIDRLR operates on 1.4V to 3.6V, identical to the original part.

Q: Is the I2C/SMBus interface compatible?

A: Yes. Both parts use the same I2C/SMBus communication protocol with no interface differences.

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